PDF malware analysis — malicious · 0377d48a1e48c945

MALICIOUS

PDF

72.9 KB Created: 2021-03-02 16:00:29 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-10

MD5: 39ac8be9a7081384459ab996085cf5c3 SHA-1: b15c35de662341197c97ae1b75935011bba611f0 SHA-256: 0377d48a1e48c94566c5a485361ae45d9d00d63fcf6dc33da2503bc5640962d9

126 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9994

Heuristics 5

ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION

ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM

Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
External URI info PDF_URI

PDF contains an external URL action
Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL

The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
Embedded URL info EMBEDDED_URL

One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
URL https://zajinet.ru/award?keyword=what+is+a+major+reason+the+renaissance+began+in+the+italian+city+states PDF link annotation
- https://pivozedotafi.weebly.com/uploads/1/3/1/0/131070355/fibomavup.pdfIn PDF document text
- https://xesevurodat.weebly.com/uploads/1/3/0/9/130968943/widukasa.pdfIn PDF document text
- https://sizugive.weebly.com/uploads/1/3/5/9/135993047/861faf287168.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4486350/normal_5ff94dbccb494.pdfIn PDF document text
- https://fevenegor.weebly.com/uploads/1/3/1/3/131380973/7718329.pdfIn PDF document text
- https://static.s123-cdn-static.com/uploads/4378393/normal_6000f97449816.pdfIn PDF document text
- http://raxejudesezix.scienceontheweb.net/excelsior_definition_greek.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4420237/normal_603be031881a3.pdfIn PDF document text
- https://cdn-cms.f-static.net/uploads/4426812/normal_602f0a235e295.pdfIn PDF document text
- http://www.ascendercorp.com/In PDF document text
- http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
- http://sogivuwe.onlinewebshop.net/medieval_2_total_war_units_mod.pdfIn PDF document text
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off0000df53.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xDF53	5544 bytes
SHA-256: `1b72379d60ec224f64004aca0005f5546d2ba4674fbc2693002748a985143f73`
`font_01_sfnt_off0000f218.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xF218	10688 bytes
SHA-256: `e93ea4718c1668acb1db221357cb25e4c57710c728e9c2b26ae6e6c59e306e38`

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